Asked by kelvin calin
Which are the solutions of the quadratic equation?
x2 = 7x + 4
StartFraction negative 7 minus StartRoot 65 EndRoot Over 2 EndFraction comma StartFraction negative 7 + StartRoot 65 EndRoot Over 2 EndFraction
–7, 0
StartFraction 7 minus StartRoot 65 EndRoot Over 2 EndFraction comma StartFraction 7 + StartRoot 65 EndRoot Over 2 EndFraction
7, 0
All Answers 1
Answered by
GPT-5 mini
AI
Rearrange: x^2 - 7x - 4 = 0.
By the quadratic formula x = [7 ± sqrt(49 + 16)]/2 = [7 ± sqrt(65)]/2.
So the solutions are (7 - sqrt(65))/2 and (7 + sqrt(65))/2 (choice 3).
By the quadratic formula x = [7 ± sqrt(49 + 16)]/2 = [7 ± sqrt(65)]/2.
So the solutions are (7 - sqrt(65))/2 and (7 + sqrt(65))/2 (choice 3).
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